thodg/libgit2/src/util/win32/error.c
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Hash : c3b7ace9
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Date : 2021-11-14T16:43:53
refactor: make util an object library Instead of simply including the utility files directly, make them a cmake object library for easy reusability between other projects within libgit2. Now the top-level `src` is responsible for platform selection, while the next-level `libgit2` and `util` configurations are responsible for identifying what objects they include.
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src/util/win32/error.c
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/* * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. */ #include "error.h" #include "utf-conv.h" #ifdef GIT_WINHTTP # include <winhttp.h> #endif char *git_win32_get_error_message(DWORD error_code) { LPWSTR lpMsgBuf = NULL; HMODULE hModule = NULL; char *utf8_msg = NULL; DWORD dwFlags = FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS; if (!error_code) return NULL; #ifdef GIT_WINHTTP /* Errors raised by WinHTTP are not in the system resource table */ if (error_code >= WINHTTP_ERROR_BASE && error_code <= WINHTTP_ERROR_LAST) hModule = GetModuleHandleW(L"winhttp"); #endif GIT_UNUSED(hModule); if (hModule) dwFlags |= FORMAT_MESSAGE_FROM_HMODULE; else dwFlags |= FORMAT_MESSAGE_FROM_SYSTEM; if (FormatMessageW(dwFlags, hModule, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)&lpMsgBuf, 0, NULL)) { /* Convert the message to UTF-8. If this fails, we will * return NULL, which is a condition expected by the caller */ if (git__utf16_to_8_alloc(&utf8_msg, lpMsgBuf) < 0) utf8_msg = NULL; LocalFree(lpMsgBuf); } return utf8_msg; }